MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, including a critical link to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text suggesting it is a PDF related to the 'first law of thermodynamics', likely a lure to encourage clicks on the malicious links. The ML classifier strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/wb?keyword=first%20law%20of%20thermodynamics%20pdf
- http://valemab.atthefeetofjesus.net/uploads/1/3/0/7/130739206/804001.pdf
- http://togaw.cdpvetcaucus.org/uploads/1/3/1/4/131453284/kotuxi.pdf
- http://files.garycollinsphotography.com/uploads/1/3/2/3/132302859/rovuxof_popezo_kukitijajomebow_wajusemofit.pdf
- http://files.theradiancerefinery.com/uploads/1/3/1/4/131406114/16ce54215.pdf
- https://cdn.shopify.com/s/files/1/0433/8375/0821/files/5279733043.pdf
- https://cdn.shopify.com/s/files/1/0435/4310/1591/files/magegixuv.pdf
- https://cdn.shopify.com/s/files/1/0434/3827/6760/files/mudapazizofagava.pdf
- https://cdn.shopify.com/s/files/1/0432/6116/5723/files/decimal_fraction_percentage_equivalents_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0438/9571/8040/files/modopoje.pdf
- https://cdn.shopify.com/s/files/1/0428/8207/2743/files/83590285639.pdf
- https://cdn.shopify.com/s/files/1/0439/1898/3323/files/silicon_valley_companies_list.pdf
- https://cdn.shopify.com/s/files/1/0437/0336/9878/files/gopesa.pdf
- https://cdn.shopify.com/s/files/1/0433/0012/6880/files/76160252389.pdf
- https://cdn.shopify.com/s/files/1/0429/0550/1852/files/81241213575.pdf
- https://cdn.shopify.com/s/files/1/0432/7243/7910/files/bell_ringers_for_middle_school_grammar.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000089f0.bin576627a15c966eed11b68d7c25917f939d0ffb693d3da6a4542a98b787a72219 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89F0 | 5544 bytes |
font_01_sfnt_off00009cbb.bin2e62eb90821ae488d97794461b81eb139c9fe288d286ce81225801a1a595bfdd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9CBB | 10320 bytes |
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